为什么我不能在 Ubuntu 中通过“sudo aptitude”安装 Java？

Question

$ sudo aptitude install sun-java6-jdk
[sudo] password for fal:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
No candidate version found for sun-java6-jdk
No candidate version found for sun-java6-jdk
No packages will be installed, upgraded, or removed.
0 packages upgraded, 0 newly installed, 0 to remove and 41 not upgraded.
Need to get 0B of archives. After unpacking 0B will be used.
Writing extended state information... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done

这是我的 /etc/apt/source.list：

deb http://archive.ubuntu.com/ubuntu/ jaunty main restricted universe
deb-src http://archive.ubuntu.com/ubuntu/ jaunty main restricted universe
deb http://archive.ubuntu.com/ubuntu/ jaunty-updates main restricted universe
deb-src http://archive.ubuntu.com/ubuntu/ jaunty-updates main restricted universe
deb http://security.ubuntu.com/ubuntu jaunty-security main restricted universe
deb-src http://security.ubuntu.com/ubuntu jaunty-security main restricted universe
deb http://us.archive.ubuntu.com/ubuntu dapper main restricted
deb http://us.archive.ubuntu.com/ubuntu dapper universe multiverse.

注意多元宇宙在那里！为什么不安装Java！？

Answer 1

在最后两行中更改dapper为jaunty，或者确保multiverse为其中jaunty一行启用。